next method example 2

python-temel/next.method.2.py

@@ -0,0 +1,32 @@
+import math
+
+class SqrtIterable:
+    def __init__(self, limit):
+        self._limit = limit
+
+    def __iter__(self):
+        return SqrtIterator(self._limit)
+
+class SqrtIterator:
+    def __init__(self, limit):
+        self._limit = limit
+        self._i = 0
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        if self._i == self._limit:
+            raise StopIteration()
+        self._i += 1
+
+        return self._i, math.sqrt(self._i)
+
+si = SqrtIterable(25)
+
+for t in si:
+    print(t, end = ' ')
+print()
+
+for i, x in si:
+    print(f'{i} --> {x}')